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Welcome to the NRCS
West Central Glaciated Soil Survey Region 10 web site.
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MLRAs are geographically associated
Common Resource Areas (CRAs)
that share a common land use, hydrology, resource use,
topgraphy, landscape conditions, soils, climate, and other natural
resource information. In the United States, 799 CRAs, ranging in size from 7 to 47,278
square miles, are aggregated into 226 MLRAs, ranging in size from 805 to 106,485 square miles.
Fourty six of those CRAs and 23 of those MLRAs
(PDF; 136 KB) are assigned to the
MLRA Soil Survey Region 10 Office.
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...More Info
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This is the approach to soil survey adopted by
NRCS in October 1995.
The major change with this approach is that the soil survey area is now a
geographic area with naturally occurring boundaries, rather than areas with
artificial boundaries (counties).
Eighteen MLRA Soil Survey Regional Offices were established
to facilitate this approach. Each Regional Office is responsible for the quality assurance
of the soils data and
maps, distributed for public use, created and edited by the Soil Survey Project Offices in
their Region. MLRA Soil Survey Region 10 is one of those 18 Regional Offices.
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This restructuring plan, adopted in November 2007 to further facilitate the Soil Survey by
Geographic Area approach, establishes
145 MLRA Soil Survey Offices (PDF; 934 KB) nationwide.
Twelve are
located in Soil Survey Region 10. (PDF; 132 KB)
Each of the MLRA Soil Survey Offices is responsible for
quality control of the soils data and maps that are in turn quality assured by their MLRA
Soil Survey Regional Office before being distributed for public use.
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...More Info
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The Natural Resources Conservation Service provides leadership
in a partnership effort to help people conserve, maintain, and improve our natural
resources and environment.
Last Modified: September 30, 2008
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